Okay kiddo, have you heard of a story called "Króka-refs saga"? It's an old Icelandic tale that people used to tell each other a long time ago. It's about a man named Króka-refs who was known for being very brave and strong.
One day, Króka-refs and his two friends, Grettir and Oddr, went on a journey to a place called Norway. They had to travel by boat across the sea, which was very dangerous back then. But Króka-refs wasn't scared, because he was so tough and fearless.
When they arrived in Norway, they met a group of warriors who challenged Króka-refs to a fight. They didn't like the fact that Króka-refs was from a different country, so they wanted to prove that they were stronger than him. But Króka-refs was so strong that he defeated all of the warriors in the fight!
After that, Króka-refs and his friends continued on their journey. They had to cross a very dangerous mountain pass, where there were lots of wolves and other wild animals. But again, Króka-refs wasn't scared, because he was so brave and powerful. He fought off all of the wolves and made it safely through the pass.
Eventually, Króka-refs and his friends returned home to Iceland. Everyone was amazed by the stories they told about their adventures. And Króka-refs became even more famous for his strength and bravery.
So that's the story of Króka-refs saga! It's a tale about a very tough and fearless man who went on an exciting adventure and proved himself to be a true hero.